黑龙江省鹤岗市第一中学2018-2019学年高一12月月考英语---精校 Word版含答案

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1、www.ks5u.com2018级高一学年12月份月考英语试题第一部分：阅读理解（共两节，40分）第一节（共15小题；每小题2分，共30分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。AItiseasiertofloatintheoceanthanitistofloatinaswimmingpool.Doyouknowwhy?Oceanwaterisfullofsalt—andsaltwatercanholdupmoreweightthanfreshwater.Seeforyourself!Yo

2、uWillNeed:●3cupsofwarmwater●Measuringcup(量杯)●Wide-mouthedjar●Salt●Spoon ●Raw(生的)potatoYouWillDo:1.Pour1.5cupsofwarmwaterintothejar.2.Add1/3cupofsalt.3.Stir(搅拌)untilthesaltiscompletelydissolved.4.Addanother1.5cupsofwater.Pouritslowlyoverthebackofthespoonintothejarsothatthet

3、woliquidswillnotmixtogether. 5. Gently placethepotatointothejar.Donotdropit.WhatWillHappen:Thepotatowillsink—butonlyhalfway!Why?Saltwaterisheavierthanfreshwater,soitwillstayonthebottom.Thefreshwater-14-willremainontop.Thepotatoisheavierthanthefreshwater,butitislighterthant

4、hesaltwater.Thatiswhythepotatowillsinkhalfwaydown.1.Intheexperiment,whatshouldyoudorightafteryoupourthewateroverthespoon?A．Addthesalttothewater.                B．Stirthesaltintothewater.C．Placethepotatointhejar.                D．Pourwarmwaterintothejar.2.InStep4oftheexperi

5、ment,whydoyoupourthewateroverthespoon“slowly”?A．Itiseasiertoseewhatyouaredoing.B．Itpushesthefreshwatertothebottom.C．Itwillkeepthewaterfromcomingout.D．Itwillkeeptheliquidsfrommixingtogether.3.Inwhichstepoftheexperimentdoyouaddthesalt?A．Step1           B．Step2           C．St

6、ep3           D．Step4BCandogsandcatsgetalongwellinthesamehome?Peoplewhoarethinkingaboutgettingadogasafriendfortheircatareworriedthattheywillfight.Arecentresearchhasfoundthatifthecatistakenbackhomebeforethedog,andiftheyareintroducedwhenstillyoung(lessthan6monthsforcats,ayea

7、rfordogs),itishighlyprobablethatthetwopetswillgetalong swimmingly.Intwo-thirdsofthehomescatsanddogshaveagoodrelationship. However,itwasn’tallsweetnessandlight.Therewasareportedcoldnessbetweenthecatanddogin25%ofthehomes,whileaggression(侵略，好斗)andfightingwerefoundin10%oftheho

8、mes.Onereasonforthisisprobablythatsomeoftheirbodylanguagesarejustdifferent.Forexample,whe